Internationally recognized as one of the world's leading experts in her field, Dr Debbie Marsden's success in dealing with equine behaviour problems is based on the highest level of academic and professional qualifications combined with long experience of living and working with horses. She competed at national level before graduating from Edinburgh University with a BSc(Hons) in physiology and genetics and a PhD in animal behaviour, husbandry and welfare. After many years as a fellow of the Royal (Dick) School of Veterinary Studies, investigating the causes of equine behaviour problems and teaching vets wishing to specialize further in horses, Debbie now runs her own consultancy company. She advises vets and horse owners on all aspects of equine behaviour, management and training and her clients include the Household Cavalry Mounted Regiment, the RSPCA, the BHS and major insurance companies. She still rides for fun and, as a qualified riding instructor, runs performance clinics.